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authorDeveshi Dwivedi <deveshigurgaon@gmail.com>2026-03-11 17:33:35 +0000
committerJunio C Hamano <gitster@pobox.com>2026-03-11 11:08:53 -0700
commit4107c0bb3455905aeacdba3be09b20e62b310eaa (patch)
treed7ff086e3ee3d044029dc61aadc25014c4ce3ba9 /builtin
parent795c338de725e13bd361214c6b768019fc45a2c1 (diff)
downloadgit-4107c0bb3455905aeacdba3be09b20e62b310eaa.tar.xz
worktree: do not pass strbuf by value
write_worktree_linking_files() takes two struct strbuf parameters by value, even though it only reads path strings from them. Passing a strbuf by value is misleading and dangerous. The structure carries a pointer to its underlying character array; caller and callee end up sharing that storage. If the callee ever causes the strbuf to be reallocated, the caller's copy becomes a dangling pointer, which results in a double-free when the caller does strbuf_release(). The function only needs the string values, not the strbuf machinery. Switch it to take const char * and update all callers to pass .buf. Signed-off-by: Deveshi Dwivedi <deveshigurgaon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin')
-rw-r--r--builtin/worktree.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/builtin/worktree.c b/builtin/worktree.c
index bc2d0d645b..4035b1cb06 100644
--- a/builtin/worktree.c
+++ b/builtin/worktree.c
@@ -539,7 +539,7 @@ static int add_worktree(const char *path, const char *refname,
strbuf_reset(&sb);
strbuf_addf(&sb, "%s/gitdir", sb_repo.buf);
- write_worktree_linking_files(sb_git, sb, opts->relative_paths);
+ write_worktree_linking_files(sb_git.buf, sb.buf, opts->relative_paths);
strbuf_reset(&sb);
strbuf_addf(&sb, "%s/commondir", sb_repo.buf);
write_file(sb.buf, "../..");